Packages installer for Dogdroid

-- ... (your existing code)

-- Function to check if the specified code or parts of the code are present in an installed app
local function checkInstalledApp(appName)
    local path = "/disk/packages/" .. appName
    local file = fs.open(path, "r")

    if file then
        local content = file.readAll()
        file.close()

        -- Check for the presence of a specific pattern or code snippet
        if string.find(content, "drawNavBar") then
            return true
        else
            return false
        end
    else
        return false
    end
end

-- Prompting the user to enter the Pastebin code and desired program name
print("Please enter the Pastebin code of the script you want to download:")
local code = read()

print("Enter the name for the program:")
local programName = read()

-- Calling the function to download code from Pastebin using the entered code and program name
downloadFromPastebin(code, programName)

-- Check if the installed app has the required code
if not checkInstalledApp(programName) then
    print("This application may not be supported for this version of Dogdroid.")
    print("Do you want to download and install it? (y/n)")
    local answer = read()

    if answer:lower() == "y" then
        downloadFromPastebin("PASTEBIN_CODE_FOR_MISSING_APP", programName) -- Use the actual Pastebin code for the missing app
    else
        shell.run("/disk/os/gui")
    end
end

-- ... (rest of your existing code)